MY143850A - Multichannel decorrelation in spatial audio coding - Google Patents

Multichannel decorrelation in spatial audio coding

Info

Publication number
MY143850A
MY143850A MYPI20053941A MYPI20053941A MY143850A MY 143850 A MY143850 A MY 143850A MY PI20053941 A MYPI20053941 A MY PI20053941A MY PI20053941 A MYPI20053941 A MY PI20053941A MY 143850 A MY143850 A MY 143850A
Authority
MY
Malaysia
Prior art keywords
characteristic
audio coding
spatial audio
signals
audio signals
Prior art date
Application number
MYPI20053941A
Other languages
English (en)
Inventor
Alan Jeffrey Seefeldt
Mark Stuart Vinton
Original Assignee
Dolby Lab Licensing Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of MY143850A publication Critical patent/MY143850A/en

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
MYPI20053941A 2004-08-25 2005-08-23 Multichannel decorrelation in spatial audio coding MY143850A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US60472504P 2004-08-25 2004-08-25
US70013705P 2005-07-18 2005-07-18
US70578405P 2005-08-05 2005-08-05

Publications (1)

Publication Number Publication Date
MY143850A true MY143850A (en) 2011-07-15

Family

ID=35448169

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20053941A MY143850A (en) 2004-08-25 2005-08-23 Multichannel decorrelation in spatial audio coding

Country Status (15)

Country Link
US (1) US8015018B2 (pt)
EP (1) EP1782417B1 (pt)
JP (1) JP4909272B2 (pt)
KR (1) KR101178060B1 (pt)
CN (1) CN101010723B (pt)
AT (1) ATE447756T1 (pt)
AU (1) AU2005280041B2 (pt)
BR (1) BRPI0514620A8 (pt)
CA (1) CA2576739C (pt)
DE (1) DE602005017502D1 (pt)
IL (1) IL181406A (pt)
MX (1) MX2007001949A (pt)
MY (1) MY143850A (pt)
TW (1) TWI393121B (pt)
WO (1) WO2006026452A1 (pt)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI393121B (zh) 2004-08-25 2013-04-11 杜比實驗室特許公司 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
EP1691348A1 (en) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametric joint-coding of audio sources
CN101151659B (zh) * 2005-03-30 2014-02-05 皇家飞利浦电子股份有限公司 多通道音频编码器、设备、方法及其解码器、设备和方法
US7840411B2 (en) * 2005-03-30 2010-11-23 Koninklijke Philips Electronics N.V. Audio encoding and decoding
JP4988716B2 (ja) 2005-05-26 2012-08-01 エルジー エレクトロニクス インコーポレイティド オーディオ信号のデコーディング方法及び装置
EP1905002B1 (en) 2005-05-26 2013-05-22 LG Electronics Inc. Method and apparatus for decoding audio signal
AU2006255662B2 (en) * 2005-06-03 2012-08-23 Dolby Laboratories Licensing Corporation Apparatus and method for encoding audio signals with decoding instructions
TWI396188B (zh) 2005-08-02 2013-05-11 Dolby Lab Licensing Corp 依聆聽事件之函數控制空間音訊編碼參數的技術
KR100857106B1 (ko) 2005-09-14 2008-09-08 엘지전자 주식회사 오디오 신호의 디코딩 방법 및 장치
EP1979898B1 (en) 2006-01-19 2014-08-06 Lg Electronics Inc. Method and apparatus for processing a media signal
KR100878816B1 (ko) 2006-02-07 2009-01-14 엘지전자 주식회사 부호화/복호화 장치 및 방법
TWI489886B (zh) * 2006-04-03 2015-06-21 Lg Electronics Inc 音頻訊號解碼方法及其裝置
MY144273A (en) 2006-10-16 2011-08-29 Fraunhofer Ges Forschung Apparatus and method for multi-chennel parameter transformation
WO2008046531A1 (en) 2006-10-16 2008-04-24 Dolby Sweden Ab Enhanced coding and parameter representation of multichannel downmixed object coding
KR101434198B1 (ko) * 2006-11-17 2014-08-26 삼성전자주식회사 신호 복호화 방법
JP5554065B2 (ja) * 2007-02-06 2014-07-23 コーニンクレッカ フィリップス エヌ ヴェ 複雑さの軽減されたパラメトリックステレオデコーダ
DE102007018032B4 (de) * 2007-04-17 2010-11-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Erzeugung dekorrelierter Signale
US8385556B1 (en) * 2007-08-17 2013-02-26 Dts, Inc. Parametric stereo conversion system and method
US20110019829A1 (en) * 2008-04-04 2011-01-27 Panasonic Corporation Stereo signal converter, stereo signal reverse converter, and methods for both
JP5326465B2 (ja) * 2008-09-26 2013-10-30 富士通株式会社 オーディオ復号方法、装置、及びプログラム
TWI413109B (zh) * 2008-10-01 2013-10-21 Dolby Lab Licensing Corp 用於上混系統之解相關器
CA2966469C (en) 2009-01-28 2020-05-05 Dolby International Ab Improved harmonic transposition
US8255821B2 (en) * 2009-01-28 2012-08-28 Lg Electronics Inc. Method and an apparatus for decoding an audio signal
PL4503028T3 (pl) 2009-01-28 2026-04-20 Dolby International Ab Ulepszona transpozycja harmonicznych
KR101405022B1 (ko) 2009-09-18 2014-06-10 돌비 인터네셔널 에이비 입력 신호를 전위시키기 위한 시스템 및 방법, 상기 방법을 수행하는 소프트웨어 프로그램 및 컴퓨터 프로그램 제품을 포함하는 저장 매체
JP5576488B2 (ja) * 2009-09-29 2014-08-20 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン オーディオ信号デコーダ、オーディオ信号エンコーダ、アップミックス信号表現の生成方法、ダウンミックス信号表現の生成方法、及びコンピュータプログラム
CN102157150B (zh) * 2010-02-12 2012-08-08 华为技术有限公司 立体声解码方法及装置
CN102157149B (zh) * 2010-02-12 2012-08-08 华为技术有限公司 立体声信号下混方法、编解码装置和编解码系统
CA3045686C (en) 2010-04-09 2020-07-14 Dolby International Ab Audio upmixer operable in prediction or non-prediction mode
US9008811B2 (en) 2010-09-17 2015-04-14 Xiph.org Foundation Methods and systems for adaptive time-frequency resolution in digital data coding
WO2012122299A1 (en) 2011-03-07 2012-09-13 Xiph. Org. Bit allocation and partitioning in gain-shape vector quantization for audio coding
US9015042B2 (en) 2011-03-07 2015-04-21 Xiph.org Foundation Methods and systems for avoiding partial collapse in multi-block audio coding
US8838442B2 (en) 2011-03-07 2014-09-16 Xiph.org Foundation Method and system for two-step spreading for tonal artifact avoidance in audio coding
US9117440B2 (en) 2011-05-19 2015-08-25 Dolby International Ab Method, apparatus, and medium for detecting frequency extension coding in the coding history of an audio signal
WO2012164153A1 (en) * 2011-05-23 2012-12-06 Nokia Corporation Spatial audio processing apparatus
WO2013017435A1 (en) * 2011-08-04 2013-02-07 Dolby International Ab Improved fm stereo radio receiver by using parametric stereo
CN102446507B (zh) * 2011-09-27 2013-04-17 华为技术有限公司 一种下混信号生成、还原的方法和装置
US9264838B2 (en) * 2012-12-27 2016-02-16 Dts, Inc. System and method for variable decorrelation of audio signals
WO2014126688A1 (en) * 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for audio signal transient detection and decorrelation control
WO2014126689A1 (en) * 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for controlling the inter-channel coherence of upmixed audio signals
TWI618050B (zh) * 2013-02-14 2018-03-11 杜比實驗室特許公司 用於音訊處理系統中之訊號去相關的方法及設備
TWI618051B (zh) 2013-02-14 2018-03-11 杜比實驗室特許公司 用於利用估計之空間參數的音頻訊號增強的音頻訊號處理方法及裝置
EP2830333A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel decorrelator, multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a premix of decorrelator input signals
PT3022949T (pt) 2013-07-22 2018-01-23 Fraunhofer Ges Forschung Descodificador de áudio multicanal, codificador de áudio de multicanal, métodos, programa de computador e representação de áudio codificada usando uma descorrelação dos sinais de áudio renderizados
EP2840811A1 (en) * 2013-07-22 2015-02-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for processing an audio signal; signal processing unit, binaural renderer, audio encoder and audio decoder
EP2866227A1 (en) 2013-10-22 2015-04-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for decoding and encoding a downmix matrix, method for presenting audio content, encoder and decoder for a downmix matrix, audio encoder and audio decoder
CN105338446B (zh) * 2014-07-04 2019-03-12 南宁富桂精密工业有限公司 音频声道控制电路
CN104518821B (zh) * 2014-12-12 2019-05-24 上海华为技术有限公司 一种宽带波束成形算法、网元以及系统
RU2580796C1 (ru) * 2015-03-02 2016-04-10 Государственное казенное образовательное учреждение высшего профессионального образования Академия Федеральной службы охраны Российской Федерации (Академия ФСО России) Способ (варианты) фильтрации зашумленного речевого сигнала в условиях сложной помеховой обстановки
CN106161820B (zh) * 2015-04-16 2019-04-23 中国科学院声学研究所 一种用于立体声声学回声抵消的通道间去相关方法
EP3545693B1 (en) 2016-11-23 2020-06-24 Telefonaktiebolaget LM Ericsson (PUBL) Method and apparatus for adaptive control of decorrelation filters
US10560661B2 (en) 2017-03-16 2020-02-11 Dolby Laboratories Licensing Corporation Detecting and mitigating audio-visual incongruence
KR102392804B1 (ko) 2017-07-28 2022-04-29 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 인코딩된 다채널 신호를 광대역 필터에 의해 생성된 충전 신호를 사용하여 인코딩 또는 디코딩하는 장치
JP7092047B2 (ja) * 2019-01-17 2022-06-28 日本電信電話株式会社 符号化復号方法、復号方法、これらの装置及びプログラム
US11451919B2 (en) * 2021-02-19 2022-09-20 Boomcloud 360, Inc. All-pass network system for colorless decorrelation with constraints
CN113873420B (zh) * 2021-09-28 2023-06-23 联想(北京)有限公司 音频数据处理方法及装置
CN120454939B (zh) * 2025-07-09 2025-11-07 荣耀终端股份有限公司 Ai模型参数获取方法、装置、存储介质和芯片系统

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5539829A (en) 1989-06-02 1996-07-23 U.S. Philips Corporation Subband coded digital transmission system using some composite signals
NL9000338A (nl) 1989-06-02 1991-01-02 Koninkl Philips Electronics Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
US6289308B1 (en) 1990-06-01 2001-09-11 U.S. Philips Corporation Encoded wideband digital transmission signal and record carrier recorded with such a signal
DK0520068T3 (da) 1991-01-08 1996-07-15 Dolby Ray Milton Koder/dekoder for flerdimensionale lydfelter
US5632005A (en) 1991-01-08 1997-05-20 Ray Milton Dolby Encoder/decoder for multidimensional sound fields
NL9100173A (nl) 1991-02-01 1992-09-01 Philips Nv Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting.
US5351338A (en) * 1992-07-06 1994-09-27 Telefonaktiebolaget L M Ericsson Time variable spectral analysis based on interpolation for speech coding
JPH08179786A (ja) * 1994-12-20 1996-07-12 Onkyo Corp 車載用ステレオ再生装置
US5727119A (en) 1995-03-27 1998-03-10 Dolby Laboratories Licensing Corporation Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase
US5812971A (en) 1996-03-22 1998-09-22 Lucent Technologies Inc. Enhanced joint stereo coding method using temporal envelope shaping
US6096960A (en) * 1996-09-13 2000-08-01 Crystal Semiconductor Corporation Period forcing filter for preprocessing sound samples for usage in a wavetable synthesizer
US5890125A (en) * 1997-07-16 1999-03-30 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
DE69942944D1 (de) * 1998-04-08 2010-12-30 British Telecomm Telekonferenzsystem
JP2000152399A (ja) * 1998-11-12 2000-05-30 Yamaha Corp 音場効果制御装置
US6175631B1 (en) * 1999-07-09 2001-01-16 Stephen A. Davis Method and apparatus for decorrelating audio signals
GB2353926B (en) * 1999-09-04 2003-10-29 Central Research Lab Ltd Method and apparatus for generating a second audio signal from a first audio signal
GB0018787D0 (en) * 2000-07-31 2000-09-20 Scient Generics Ltd Communication system
US7583805B2 (en) * 2004-02-12 2009-09-01 Agere Systems Inc. Late reverberation-based synthesis of auditory scenes
US20030035553A1 (en) * 2001-08-10 2003-02-20 Frank Baumgarte Backwards-compatible perceptual coding of spatial cues
US7006636B2 (en) * 2002-05-24 2006-02-28 Agere Systems Inc. Coherence-based audio coding and synthesis
US7116787B2 (en) 2001-05-04 2006-10-03 Agere Systems Inc. Perceptual synthesis of auditory scenes
US7292901B2 (en) 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
US6458044B1 (en) 2001-06-13 2002-10-01 Taylor Made Golf Company, Inc. Golf club head and method for making it
SE0202159D0 (sv) * 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
US20030187663A1 (en) 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
BR0304541A (pt) * 2002-04-22 2004-07-20 Koninkl Philips Electronics Nv Método e arranjo para sintetizar um primeiro e um segundo sinal de saìda a partir de um sinal de entrada, aparelho para prover um sinal de áudio decodificado, sinal de multicanal decodificado, e, meio de armazenamento
ES2300567T3 (es) 2002-04-22 2008-06-16 Koninklijke Philips Electronics N.V. Representacion parametrica de audio espacial.
WO2003090207A1 (en) 2002-04-22 2003-10-30 Koninklijke Philips Electronics N.V. Parametric multi-channel audio representation
US7039204B2 (en) 2002-06-24 2006-05-02 Agere Systems Inc. Equalization for audio mixing
CN1460992A (zh) * 2003-07-01 2003-12-10 北京阜国数字技术有限公司 用于感知音频编/解码的低延时、自适应的多分辨率滤波器组
JP4867914B2 (ja) 2004-03-01 2012-02-01 ドルビー ラボラトリーズ ライセンシング コーポレイション マルチチャンネルオーディオコーディング
US20050265558A1 (en) * 2004-05-17 2005-12-01 Waves Audio Ltd. Method and circuit for enhancement of stereo audio reproduction
US7876909B2 (en) * 2004-07-13 2011-01-25 Waves Audio Ltd. Efficient filter for artificial ambience
JP4989468B2 (ja) * 2004-07-14 2012-08-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ オーディオチャネル変換
TWI393121B (zh) 2004-08-25 2013-04-11 杜比實驗室特許公司 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
US7720230B2 (en) * 2004-10-20 2010-05-18 Agere Systems, Inc. Individual channel shaping for BCC schemes and the like
SE0402652D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi- channel reconstruction
AU2006255662B2 (en) * 2005-06-03 2012-08-23 Dolby Laboratories Licensing Corporation Apparatus and method for encoding audio signals with decoding instructions
US20070055510A1 (en) * 2005-07-19 2007-03-08 Johannes Hilpert Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding
CN102395098B (zh) * 2005-09-13 2015-01-28 皇家飞利浦电子股份有限公司 生成3d声音的方法和设备
KR101218776B1 (ko) * 2006-01-11 2013-01-18 삼성전자주식회사 다운믹스된 신호로부터 멀티채널 신호 생성방법 및 그 기록매체
US8488796B2 (en) * 2006-08-08 2013-07-16 Creative Technology Ltd 3D audio renderer

Also Published As

Publication number Publication date
TWI393121B (zh) 2013-04-11
CA2576739C (en) 2013-08-13
TW200611241A (en) 2006-04-01
JP2008511044A (ja) 2008-04-10
AU2005280041A1 (en) 2006-03-09
IL181406A0 (en) 2007-07-04
AU2005280041B2 (en) 2010-04-22
EP1782417A1 (en) 2007-05-09
ATE447756T1 (de) 2009-11-15
CA2576739A1 (en) 2006-03-09
BRPI0514620A8 (pt) 2018-07-31
IL181406A (en) 2011-04-28
CN101010723B (zh) 2011-05-18
MX2007001949A (es) 2007-04-23
BRPI0514620A (pt) 2008-06-17
JP4909272B2 (ja) 2012-04-04
KR20070051856A (ko) 2007-05-18
KR101178060B1 (ko) 2012-08-30
CN101010723A (zh) 2007-08-01
DE602005017502D1 (de) 2009-12-17
US20080126104A1 (en) 2008-05-29
HK1099839A1 (en) 2007-08-24
WO2006026452A1 (en) 2006-03-09
US8015018B2 (en) 2011-09-06
EP1782417B1 (en) 2009-11-04

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